sit tight!
If you know you will be slow in de-planning, Just sit tight and wait for the rest of the passengers to deplane. People with canes, crutches, strollers, toddlers, bags too heavy for them or that must walk slowly, just exit last, for pete's sake. I once had a women in front of me holding up the whole plane because she was straightening the collar on her teenage daughters jacket and fixing her hair too, adjusting their carry ons etc, all oblivious of holding up the entire plane!! Other times we finally get to the jet way, to only have to jockey around an elderly passenger waiting for a wheel chair or taking up the entire walkway with their walker or cane. Why do you want that pressure of knowing there are LOTS of people waiting behind you!!!!???
And if the plane has been delayed, the FA should be asking if anyone needs to make a quick connection. No one would mind letting a few people off first!